NB6L572M
2.5V / 3.3V Differential 4:1
Mux to 1:2 CML Clock/Data
Fanout / Translator
Multi−Level Inputs w/ Internal Termination
http://onsemi.com
Description
The NB6L572M is a high performance differential 4:1 Clock / Data
input multiplexer and a 1:2 CML Clock / Data fanout buffer that
operates up to 6 GHz / 8 Gbps respectively with a 2.5 V or 3.3 V
power supply.
The differential Clock / Data inputs have internal 50 W termination
resistors and will accept differential LVPECL, CML, or LVDS logic
levels. The NB6L572M incorporates a pair of Select pins that will
choose one of four differential inputs and will produce two identical
CML output copies of Clock or Data.
As such, the NB6L572M is ideal for SONET, GigE, Fiber Channel,
Backplane and other Clock/Data distribution applications.
The two differential CML outputs will swing 400 mV when
externally loaded and terminated with a 50 W resistor to VCC and are
optimized for low skew and minimal jitter.
The NB6L572M is offered in a low profile 5x5mm 32−pin QFN
Pb−Free package. Application notes, models, and support
documentation are available at www.onsemi.com. The NB6L572M is
a member of the ECLinPS MAX™ family of high performance clock
products.
Features
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November, 2009 − Rev. 1
1
1
32
QFN32
MN SUFFIX
CASE 488AM
NB6L
572M
AWLYYWWG
G
A
= Assembly Location
WL
= Wafer Lot
YY
= Year
WW
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of
this data sheet.
• Differential CML Outputs, 400 mV Peak−to−Peak,
Input Data Rate > 8 Gb/s Typical
Data Dependent Jitter < 10 ps
Maximum Input Clock Frequency > 6 GHz Typical
Random Clock Jitter < 0.8 ps RMS
Low Skew 1:2 CML Outputs, < 15 ps max
4:1 Multi−Level Mux Inputs, accepts LVPECL, CML
LVDS
200 ps Typical Propagation Delay
35 ps Typical Rise and Fall Times
© Semiconductor Components Industries, LLC, 2009
MARKING
DIAGRAM
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1
Typical
Operating Range: VCC = 2.375 V to 3.6 V with
GND = 0 V
Internal 50 W Input Termination Resistors
VREFAC Reference Output
QFN−32 Package, 5mm x 5mm
40°C to +85°C Ambient Operating Temperature
These are Pb−Free Devices
Publication Order Number:
NB6L572M/D
